Elevated tile-stop member for adjustable electrical trench

Claim 1

IN AN UNDERFLOOR ELECTRICAL TRENCH HAVING IN COMBINATION: AN UPRIGHT CHANNEL HAVING A BASE AND UPRIGHT SIDES; A LINEAR SCREED STRIP EXTENDED ALONG EACH OF THE SAID UPRIGHT SIDES AND HAVING A HORIZONTALLY DISPOSED, UPWARDLY-PRESENTED SUPPORTING LEDGE; A COVER PLATE DISPOSED ABOVE THE SAID BASE AND HAVING LATERAL EDGE PORTIONS OF ITS BOTTOM SURFACE DISPOSED ABOVE THE SAID SUPPORTING LEDGE AND SECURED THERETO; AND ADJUSTING MEANS FOR SETTING THE VERTICAL DISTANCE BETWEEN THE SAID COVER PLATE AND THE SAID BASE; WHEREBY THE SAID CHANNEL, LINEAR SCREED STRIPS AND COVER PLATE COMPRISE A CONTINUOUS ENCLOSURE FOR THE INTERIOR OF THE SAID TRENCH; THE IMPROVEMENT COMPRISING: A SCREED LIP WHICH IS INTEGRAL WITH THE SAID LINEAR SCREED STRIP AND WHICH IS DISPOSED LATERALLY OF SAID ABOVE THE SAID SUPPORTING LEDGE, SAID SCREED LIP HAVING AN UPPER SURFACE WHICH IS SUBSTANTIALLY COPLANAR WITH THE UPPER SURFACE OF THE SAID COVER PLATE; THE SAID SCREEN LIP BEING SPACED APART FROM THE ADJACENT SIDE EDGE OF THE SAID COVER PLATE; A LENGTHWISE SLOT IN THE SAID LINEAR SCREED STRIP LOCATED BENEATH THE UPPER SURFACE OF THE SAID SCREED LIP AND LOCATED AT LEAST IN PART ABOVE THE SAID SUPPORTING LEDGE; A TILE-STOP MEMBER COMPRISING A TILTE-STOP EXTENSION AND A TONGUE DISPOSED ANGULARLY THERETO, THE SAID TONGUE BEING DISPOSED WITHIN THE SAID SLOT AND THE SAID TILESTOP EXTENSION BEING DISPOSED BETWEEN THE SAID SCREED LIP AND THE SAID COVER PLATE WITH THE EXTREMITY OF THE SAID TILE-STOP EXTENSION BEING ELEVATED ABOVE THE SAID SCREED LIP AND THE UPPER SURFACE OF THE SAID COVER PLATE.